Minesweeper — Expert
Expert minesweeper is the full-size standard game: 30 × 16 — 480 squares with 99 mines, a 20.6% density. It is the familiar expert configuration used for competitive time categories and the level where a well-played game can still ask you to take a calculated risk.
New game lays a fresh board, the flag button turns tapping into flagging — there is no right-click on a phone — Hint highlights one move proved by a visible clue, and the three-dot menu holds the keyboard shortcuts.
Your statistics · Expert
- Played
- 0
- Won
- 0
- Win rate
- 0%
- Streak
- 0
- Best streak
- 0
- Best time
- —
This board
30 × 16 with 99 mines — 20.6% density, the board every world record is set on.
Keyboard
- Tab
- Move into the grid — one stop, not one per square
- Arrows
- Move between squares
- Home / End
- First or last square in the row
- Enter
- Open the square
- F
- Flag or unflag
- C
- Chord an open number
- Grid
- 30 × 16 — 480 squares
- Mines
- 99 — 20.6% density
- First click
- Always safe
- Format
- Standard expert board
- Goal
- 381 safe squares opened
Why is expert minesweeper hard?
Density, twice over. One mine in five squares means the average number you reveal is higher, constraint-dense regions arrive earlier, and the classic endgame problem — a pocket where the remaining mines cannot be placed deterministically — shows up far more often than on the smaller boards. On this site the hint button is honest about its scope: it offers a move proved by one visible clue, or reports that its two direct checks found no simple deduction rather than pointing at random.
Length is the other tax. 381 squares must be opened, so a single lapse on minute four costs a board you were winning. Strong players describe expert as a stamina game with arithmetic in it.
How do you beat expert minesweeper consistently?
- Clear the edges before committing to the interior. Wall numbers carry fewer unknowns and give up information for free.
- Treat every flag as provisional. Wrong flags are how winning boards die at this density; chord checks catch them before they metastasise.
- Learn the standard patterns cold — 1-2-1, 1-2-2-1, the 1-1 edge pair — because recognising them on sight buys back the seconds your endgame will spend.
- Take forced guesses early, in the cheapest region, and never two at once. A guess made while half the board is still tidy costs less to abandon.
- Use the hint as a logic check. It identifies a move proved by one revealed number and clearly says when its two direct checks find none.
What is a good expert minesweeper time?
Finishing at all is the first milestone. After that, use your own best time as the next target rather than comparing one randomly generated board with another. This site keeps separate statistics per board size, so your expert record stays apart from beginner and intermediate.
If ninety-nine mines sound like too much for a lunch break, the 16 × 16 intermediate board keeps every habit you are practising at a third of the length, and the rules page has the worked examples.
Is expert minesweeper mostly luck?
No, though random generation means luck can matter. Most of the board is still about reading constraints, combining neighbouring clues, and recognising patterns. Skill controls which regions you clear first, whether a choice really is forced, and which covered square offers the best odds when the clues are genuinely ambiguous.
Minesweeper — Expert questions people ask
- How many mines are on expert minesweeper?
- Ninety-nine, spread over a 30 × 16 grid of 480 squares — 20.6% density, leaving 381 squares to open safely. This is the standard expert configuration familiar from classic desktop minesweeper.
- Can every expert minesweeper board be solved without guessing?
- No. A randomly generated board can contain a pocket where the visible clues do not distinguish between two possible mine layouts. The hint never guesses: it suggests only moves established by one revealed number. If it finds none, a wider deduction may still exist, or the position may genuinely require a risk.
- What percentage of expert minesweeper is solvable by logic?
- There is no single universal percentage. It depends on the generator, including how the first click is protected, and on what counts as a forced deduction. Expert boards can require a guess even when every earlier move was logical.
- Is expert the hardest minesweeper setting?
- Among the standard sizes, yes — and beyond it this site offers a custom builder up to 40 × 40 with 1500 mines, where the game stops being minesweeper and starts being cartography. Expert remains the reference difficulty the name means.
The full rules of minesweeper
This page is one rule set. The complete rules, with worked examples and the questions beginners actually ask, are on how to play minesweeper, and every rule set is switchable on the main minesweeper page.